Can someone ? the info is above. the questions are below: 21(a) circle the height of the cylinder. 8cm 10.5cm 13cm 21cm 21(b) work our the rate of increase of the depth of the water between 6 seconds and 11 seconds. state the units of your answer.

21(a) 8 cm

21(b) 1.6 cm/sec

Step-by-step explanation:

21(a)

21 cm = 13 cm = 8 cm

21(b)

Increase in depth from 6 sec to 11 sec: 8 cm

Time from 6 sec to 11 sec: 11 sec - 6 sec = 5 sec

Rate = (8 cm)/(5 sec) = 1.6 cm/sec

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is symmetric about the line y = 120,000.

step-by-step explanation: